package com.wen.oop;

public class oop04 {
    public static void main(String[] args) {
        int a=1;
        System.out.println(a);
        oop04.change(a);
        System.out.println(a);//1
    }
//    值传递,返回值是空
    public static void change(int a){
        a=10;
    }
}
